YOHOOLYO Alarm Disc Lock Motorcycle Disc Brake Lock Anti-Theft Waterproof 110 dB 7mm Pin 5ft Reminder Cable
Quick take
This metal alarm disc lock is built to deter theft by combining a 7mm pin lock with a motion-triggered 110 dB siren. It is best for riders who want a louder secondary layer for bikes, scooters, and motorcycles, especially when parking for short periods and you value a built-in reminder cable to stay aware of the lock. The main tradeoff is usability sensitivity, including how the alarm can react while you are working with the key.
Pros and cons
Pros
- Metal disc lock build designed for sturdiness and everyday use
- 110 dB alarm plus a warning period before the full alarm triggers
- Weather-focused design for outdoor parking (waterproof and rust-resistant)
- Includes a 5ft reminder cable and carry pouch for better day-to-day handling
Cons
- Alarm sensitivity can be noticeable while you are inserting the key or handling the lock
- Reminder cable and alarm features mean more parts to manage than a simple non-alarm disc lock
- Works only on wheels that have suitable holes or spokes for the disc-lock style pin
What buyers think
Buyer feedback centers on two themes: the alarm is very loud and effective as a deterrent, and the lock is generally sturdy and straightforward to use once you are familiar with it. Several reviews mention that the alarm includes a short warning before sounding, which helps reduce surprises. The 5ft reminder cable also gets positive feedback as a practical “don’t forget the lock” aid. The most repeated usability complaint is that getting the key in can be tricky at times, and the alarm may trigger while you are actively unlocking. Across reviews, people treat this as a solid value disc lock for motorcycles, scooters, and similar vehicles, but also as something to pair with other security measures rather than rely on alone.
How this disc lock and alarm system works
The YOHOOLYO lock is a disc brake-style pin lock meant to secure a wheel when the disc and surrounding wheel openings provide a place for the pin. Once locked, the alarm uses a motion sensor to detect movement. There is a short delay period and a warning beep before the alarm fully triggers, then the siren runs for a defined interval.
In practical terms, that warning-before-alarm behavior is designed to give you a brief moment to stop movement or finish handling the lock, instead of immediately blasting the siren the instant the wheel shifts.
Key features that matter for buyers
Metal build and weather resistance
The lock is described as entirely metal, and buyers commonly describe it as sturdy. It is also positioned as waterproof and rust-resistant to handle outdoor conditions better than basic lightweight accessories.
110 dB loud deterrent with motion detection
The alarm is rated at 110 decibels, with motion sensing and a short warning before the full alarm. If you park where loud alarms are likely to get attention, that combination is a major reason people choose this type of product.
7mm pin and flexible positioning
The locking pin is 7mm, and it is designed to be set in different positions (so it can be aligned to the wheel’s openings). That flexibility helps it fit more wheel layouts, but it still requires the right type of access holes or spokes around the wheel area.
Battery and carrying extras
It uses included batteries, and the lock includes a carrying pouch for transport and storage. Buyers also like that it ships with a set of keys and includes an Allen key for disassembly when the battery needs attention.
Pros and cons in real-world use
Best for
- Motorcyclists, scooter riders, and cyclists who want a loud alarm disc lock as a deterrent
- Anyone who parks in shared areas where an alarm being heard could discourage tampering
- Riders who appreciate a reminder cable that helps prevent forgetting the lock is on
- Shoppers looking for a weather-focused disc lock for outdoor use
Who should avoid it
- Buyers who need a “set it and forget it” experience, because alarm sensitivity can react during unlocking
- People whose wheel setup does not match the disc-lock style pin access (no suitable holes or spokes)
- Shoppers trying to replace a full theft-protection strategy, since a disc lock alarm works best as a secondary layer
Price and availability
The list price is listed higher than the current price shown for this item, and it is typically presented as an affordable add-on security option in the alarms-and-anti-theft category. If you are cross-shopping, compare against other alarm disc locks using the same decision points: compatibility with your wheel, alarm loudness, water resistance, and how easy it is to use the key without nuisance triggering.
Verdict: is it worth it?
The YOHOOLYO alarm disc lock is a strong fit if your priority is loud deterrence plus waterproof durability for day-to-day parking. The built-in warning period and the included reminder cable are practical touches that match common buyer needs. The main caveat is that it can be sensitive enough to trigger while you are unlocking, so plan a moment to get the key action down. Overall, it is best treated as a secondary theft deterrent paired with other measures, not as your only line of defense.
FAQ
Does the alarm sound immediately?It is motion-sensor based and designed with a short delay and warning beep before the full alarm goes off.
Is this lock waterproof?It is described as waterproof and rust-resistant, aiming to hold up better to outdoor conditions.
Will it work on any wheel?It is intended for vehicles with holes or spokes around the wheel area that allow the 7mm pin disc-lock style attachment.
How loud is the alarm?The alarm is rated at 110 decibels.
What is the reminder cable for?It helps you remember the lock is attached to the wheel, which reduces the chances of leaving the lock on by accident.
What is this lock best used for?It is best as a loud deterrent and secondary layer for motorcycles, bikes, and scooters, especially when parked in areas where audible alarms can attract attention.
Specifications
| Product Title | YOHOOLYO Alarm Disc Lock Motorcycle Disc Brake Lock Anti-Theft Waterproof 110 dB 7mm Pin 5ft Reminder Cable for Motorcycles Bike Scooter Carry Pouch (Black) |
|---|---|
| Category | Automotive > Motorcycle & Powersports > Accessories > Electronics > Alarms & Anti-Theft |
| Brand | YOHOOLYO |
| Manufacturer | YOHOOLYO |
| Model Number | LK603 |
| Color | Black |
| Size | portable |
| Item Weight | 0.77 Pounds |
| Compatible Devices | motorcycles, bicycles, scooters |
| Number of Batteries | 1 Nonstandard Battery batteries required. (included) |
| Control Method | Touch |
| Audible Noise | 110 Decibels |
| Maximum Range | 5 Feet |
| UPC | 611864444543 |
| Mfr Part Number | 43249-125169 |
| Unit Count | 1 Count |
| Built-In Media | a motorcycle disc lock, two keys, an Allen key, 5ft reminder cable, and carry pouch |
Available variants
Color
- Black
- Red
- Green
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